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单词 trappean
释义 trappean, a. Min.|ˈtræpiːən|
[f. trap n.5 + -ean (L. -e-us + -an): cf. marmorean.]
Pertaining to, of the nature of, or consisting of trap-rock.
1813Bakewell Introd. Geol. (1815) 55 Domes of trappean porphyry.1855J. R. Leifchild Cornwall Mines 271 A very fertile soil is formed from what is geologically called ‘trappean ash’, on the trap rocks.1873J. Geikie Gt. Ice Age xvi. 205 The trappean heights..between the valleys of the Clyde and the Irvine.
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